php – Doctrine 2：在复杂的关系中保存实体

发布时间：2020-12-13 13:12:02 所属栏目：PHP教程来源：网络整理

导读：我的学说实体内有以下关系： FavoriteRecipe /** * @ManyToOne(targetEntity="User",inversedBy="favoriteRecipes") */private $user;/** * @ManyToOne(targetEntity="Recipe",inversedBy="favoriteRecipes") */private $recipe; 食谱 /** * @OneToMany(targ

我的学说实体内有以下关系：

FavoriteRecipe

/**
 * @ManyToOne(targetEntity="User",inversedBy="favoriteRecipes")
 */
private $user;

/**
 * @ManyToOne(targetEntity="Recipe",inversedBy="favoriteRecipes")
 */
private $recipe;

食谱

/**
 * @OneToMany(targetEntity="FavoriteRecipe",mappedBy="user")
 */
private $favoriteRecipes;

用户

/**
 * @OneToMany(targetEntity="FavoriteRecipe",mappedBy="user")
 */
private $favoriteRecipes;

在我的一个控制器中,我有以下代码：

$favoriteRecipe = new EntitiesFavoriteRecipe();
$favoriteRecipe->setRecipe($recipe);
$favoriteRecipe->setUser($user);
$this->_em->persist($favoriteRecipe);
$this->_em->flush();

但是这会抛出以下消息的异常：

A new entity was found through a relationship that was not configured
to cascade persist operations:
EntitiesUser@00000000408bd010000000007cb1380e. Explicitly persist the
new entity or configure cascading persist operations on the
relationship.

如何正确创建和保存FavoriteRecipe实体？

您是否为所有关系实体设置了级联选项？这是通过为excample设置cascade属性来完成的：cascade = {“persist”,“remove”}

也许这个页面：http://www.doctrine-project.org/docs/orm/2.0/en/reference/working-with-associations.html

或者这些视频：
http://www.zendcasts.com/many-to-many-with-doctrine-2/2011/03/
http://www.zendcasts.com/one-to-many-with-doctrine-2/2011/03/

（编辑：李大同）

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